jquery - How can i process this form alone -

this question exact duplicate of:

• how can make onclick function submit form.php 2 answers

i have function on html form, form script there

    <script type="text/javascript">            var conf = {            isvip:false,            ismem:false         };     </script> 

and here the button, button process 2 form in html, here button.

 <li class="current">   <a href="#" onclick="submitaction('process.php')">免费邮箱登录</a>    </li>    <li>  <a href="#" onclick="submitaction('process.php')"><span class="vip"></span>vipsubmit</a>   </li>  <a href="#" class="loginbtn"   

here form

       <form name="vip_login" method="post" action="process.php">         <input tabindex="1" id="vipname" type="text" class="username" name="username" value=""/><span class="vipdomain">@name.com</span>        <input  tabindex="2"  id="vippassword" type="password" class="password" name="password" value=""/> 

my question is, how make btn process form alone , send data external process.php function.

first, give form id:

<form id="vip_login" method="post" action="process.php"> 

next, download jquery if don't have it, , setup onclick of href this:

<a href='#' class='loginbtn' onclick="$('#vip_login').submit();" ... 

and force submit of form.